/*{
    let a=2;
    console.log(a);
}
console.log(a);*/
/*try{throw 2;}
catch(a){
    console.log(a);
}
console.log(a);*/
{
    try{
        throw undefined;
    }
    catch(a){
          a=2;
        console.log(a)
    }
}
console.log(a);